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A guitntatsatmt @ffice ALEXANDER MILLAR, OF ROXBURY, MASSACHUSETTS, ASSIGNOR TO HIM- SELF AND E. A. G. ROULSTONE, 0F SAME PLACE.

Letters PatentNo. 61,084, dated January 8, 1867.

IMPROVBD DRINKING-cur.

To ALL WHoM 1r MAY'eoNenRN:

Beit known that I, ALEXANDER MILLAR, of Scotland, residing in Roxbury, in the county of Norfolk, and State of Massachusetts, have invented an Improved Drinking-Cup; and I do hereby declare that the following, taken in connection with the drawings which accompany and forni part of this speeication, is a description of my invention sufficient to enable those skilled in the art to practise it.

The invention relates to that class of drinking-cups made of a serios of frusto-conical sections (the smallest provided with a bottom) placed within one another, and havingsuch relative form and size that, when drawn out, the upper edge of' cach section Vshall lit tightly within the lower edge of the next adjacent section, thus forming a. c'lp of convenient capacity for drinking purposes, but capable of being reduced to such comparatively small size that it may be readily carried in therpoeket. This construction, however, is objectionable in that, as usnallypnt together, there is nothing to prevent the respective sections from becoming separated each from the others, and consequently one or more parts are liable to be lost, or the sections are constantly falling apart,.to the great annoyance and trouble of the user. y

The object of my invention is to remedy this dilliculty; and I accomplish this remedy by first constructingl and arranging the sections together, as usual, and by then applying to the bottom of the lower section a projecting lip or llange, having a diameter somewhat greater than the diameter' of the small end of the largest section; and it is in such construction that iny invention consists.

The drawing represents a cup embodying my invention- A showing a side view of the saine when extended.

B, a view half in section and halt in elevation, with the parts closed together.

a b c denote the respective sections ot' the cup, cach made of truste-conical form, and Ato fit one another in the usual manner. At the bottom of the lower one, c, aft-er the sections are thus made and placed together, l apply a flange or lip, d, extending outwards l'romthe cup to such distance as shall confine all the sections together when closed up. Preferably I form this flange of a series of lips, one for each section,vclosing upon the lower cup and fitting the lower edge of such section, this arrangement keeping the parts in concentric position, and preventing their rattling when the parts are closed together. If desirable, a cover may be fitted to close over the upper edge of the cup. It will be readily seen that this construction enables the cup to be always kept in condition for. use, without liability et losing any part of it, or of having the cup coming to pieces, in or out of the pocket, thusadding greatly to its utility, and without any material increase in its cost.

I am aware that it is not new to make the sections of a telescopic drinking-cup cylindrical, and to keep them from falling apart by applying to each section a Bange or lip, as 'show-'nin Patent 28,597. But such cup is imperfect, in that the parts do not fit tightly together when drawn out to form the cup, whereas in my cup, by making each section conical, or frusta-conical, and applying the ange only to the bottom piece, the parts must fit tightly when drawn out, and are kept together whenvnested, making a much more simple and reliable construction than that referred to.

I'elaim the construction or formation of the cup, with a base composed of a stepped flange on the bottom piece,4 substantially as described. p y

' ALEXANDER MILLAR. Witnesses:

F. GOULD,

S. B. KIDDER. 

